<h2>Problem 41</h2>
<div style="color:#666;font-size:80%;">11 April 2003</div><br />
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<p>We shall say that an <i>n</i>-digit number is pandigital if it makes use of all the digits 1 to <i>n</i> exactly once. For example, 2143 is a 4-digit pandigital and is also prime.</p>
<p>What is the largest <i>n</i>-digit pandigital prime that exists?</p>

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